流行性脑脊髓膜炎(以下简称流脑)是我省以往较严重的流行病,主要由A 群菌所引起。自1980年全面推广应用A 群流脑多糖菌苗以来,凭借该菌苗85～90%以上的预防效果,发病率已逐年下降,至1989年全省年发病率仅为2.08/十万。在这种年发病率低下的情况下,全省流脑的发展趋势如何,对今后更好采取预防措施至关紧要。为此,我们于 Epidemic cerebrospinal meningitis (hereinafter referred to as meningitis) is more serious epidemic in our province in the past, mainly caused by A group of bacteria. Since the popularization and application of group A meningitis polysaccharide vaccine in 1980, with the preventive effect of 85-90% of the vaccine, the incidence has been declining year by year. By 1989, the annual incidence in the province was only 2.08 / 100,000. In this case of low annual incidence, the province’s development trend of meningitis, how to take better preventive measures in the future is crucial. To this end, we are here